EP 0643708 B1 19961113 - RECOVERY OF 3,4-EPOXY-1-BUTENE FROM 1,3-BUTADIENE OXIDATION EFFLUENTS

Title (en)

RECOVERY OF 3,4-EPOXY-1-BUTENE FROM 1,3-BUTADIENE OXIDATION EFFLUENTS

Title (de)

RÜCKGEWINNUNG VON 3,4-EPOXY-1-BUTEN AUS DEN ABGASEN DER 1,3-BUTADIENOXYDATION

Title (fr)

RECUPERATION DE 3,4-EPOXY-1-BUTENE CONTENU DANS DES EFFLUENTS D'OXYDATION DE 1,3-BUTADIENE

Publication

EP 0643708 B1 19961113 (EN)

Application

EP 92921279 A 19920928

Priority

US 9208229 W 19920928
US 77275091 A 19911007

Abstract (en)

[origin: US5117012A] Disclosed are processes for the manunfacture of 3,4-epoxy-1-butene (EpB) and, particularly, for the recovery of EpB from an epoxidation effluent comprising EpB, butadiene, oxygen and an inert gas obtained by the selective epoxidation of butadiene with an oxygen-containing gas in the presence of a catalyst and an inert gas. EpB is separated from the effluent by means of an absorption process using liquid butadiene as the absorbent material.

IPC 1-7

C07D 303/04; C07D 301/32

IPC 8 full level

C07D 301/32 (2006.01); C07D 303/04 (2006.01)

CPC (source: EP US)

C07D 301/32 (2013.01 - EP US); C07D 303/04 (2013.01 - EP US)

Designated contracting state (EPC)

AT BE CH DE DK ES FR GB GR IE IT LI LU MC NL SE

DOCDB simple family (publication)

US 5117012 A 19920526; AT E145202 T1 19961115; AU 2755692 A 19930503; AU 660886 B2 19950706; BR 9206598 A 19951017; CA 2120253 C 19961203; CN 1034937 C 19970521; CN 1073434 A 19930623; DE 69215240 D1 19961219; DE 69215240 T2 19970306; EP 0643708 A1 19950322; EP 0643708 B1 19961113; ES 2094371 T3 19970116; GR 3022335 T3 19970430; JP 3288701 B2 20020604; JP H07506560 A 19950720; KR 100220445 B1 19990915; MY 108346 A 19960930; TW 229202 B 19940901; WO 9307133 A1 19930415

DOCDB simple family (application)

US 77275091 A 19911007; AT 92921279 T 19920928; AU 2755692 A 19920928; BR 9206598 A 19920928; CA 2120253 A 19920928; CN 92112823 A 19921007; DE 69215240 T 19920928; EP 92921279 A 19920928; ES 92921279 T 19920928; GR 960403454 T 19970122; JP 50698693 A 19920928; KR 19940701113 A 19940407; MY PI19921498 A 19920819; TW 81103752 A 19920514; US 9208229 W 19920928